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Sheet for LED light cover application
US9304232B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9304232-B2 |
| Application number | US-201213610809-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 11, 2012 |
| Priority date | Sep 11, 2012 |
| Publication date | Apr 5, 2016 |
| Grant date | Apr 5, 2016 |
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Abstract
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Disclosed herein is a sheet comprising a polymeric material; light diffusing particles disposed in the polymeric material; and a non-random surface texture on a surface of the sheet; wherein the surface texture comprises hemispherical structures, partial hemispherical structures, ellipsoidal structures, immersed spherical beads, ellipsoidal beads, “bell-shape” bump, complex lens shape structures, pyramidal structures, reversed pyramidal structures, or combinations comprising at least one of the foregoing. The sheet has excellent hiding power and transmission at the same time and is suitable for LED light cover applications. The unit structures have an aspect ratio of 0.15 to 0.5 and a pitch of greater than or equal to 100 μm.
First claim
Opening claim text (preview).
We claim: 1. A sheet comprising: a polymeric material; light diffusing particles disposed in the polymeric material; and a non-random surface texture formed from unit structures on a surface of the sheet; wherein the surface texture comprises hemispherical structures, partial hemispherical structures, ellipsoidal structures, immersed spherical beads, ellipsoidal beads, “bell-shape” bump, complex lens shape structures, pyramidal structures, reversed pyramidal structures, or c…
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Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- G02B3/0056Primary
Physics · mapped topic
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- What does patent US9304232B2 cover?
- Disclosed herein is a sheet comprising a polymeric material; light diffusing particles disposed in the polymeric material; and a non-random surface texture on a surface of the sheet; wherein the surface texture comprises hemispherical structures, partial hemispherical structures, ellipsoidal structures, immersed spherical beads, ellipsoidal beads, “bell-shape” bump, complex lens shape structure…
- Who is the assignee on this patent?
- Chen Zhe, Sun Yafeng, Bastawros Adel Fawzy, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification G02B3/0056. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Apr 05 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).